1.Combine salt, sherry and cornstarch in a medium bowl. Add shrimp, stir to coat and let stand for 30 minutes. Combine sauce ingredients in a small bowl. 2. Heat a wok over high heat until hot. Add the oil, onion, garlic, ginger and red pepper flakes; cook 30 seconds. Add shrimp and toss until; pink, 2 to 3 minutes. Add the sauce and cook for 1 minute or until shrimp are nicely glazed.